you Downloaded firmware for Huawei Y6 (2019) MRD-L21 with build Huawei Y6 2019 MRD-L21 MRD-LX1 hw eu HLRCF Madrid-L21A 9.1.0.234(C432E5R2P1) Firmware 9.0.0 r3 EMUI9.1.0 05015RLM
Huawei Y6 (2019) MRD-L21 Published on Released 2019, March . with Android 9.0; EMUI 9.
Display size on Huawei Y6 (2019) is 6.09" and the resolution is 720x1560 pixels

You can flash The Stock firmware of MRD-L21 using This Guide.
more about Huawei Y6 2019 MRD-L21:

this model of huawei powerd by Quad-core 2.0 GHz Cortex-A53 and the internal storage size and ram size is 32GB storage, microSD slot.
also it can support microSD, up to 1 TB (dedicated slot).
besides it can support Dual SIM (Nano-SIM, dual stand-by) .
the Gpu chip model is PowerVR GE8320 and also the Chipset model used on this model is MT6761 Helio A22
The camera on the Huawei MRD-L21 comes with and support 1080p video pixles.